simpson



2 Sheets-Sheet 1.

(No Model.) J. H. SIMPSON. MACHINE FOR MAKING TURN BUUKLES. N0. 402,695. Patented May 7, 1889.

WITNESSES. INVENTOR- W W M $44 Wax/s- N. PETERS, Fhclo-umagnphnr. Wflshingiflm D. C.

(No Model.) 2 i-heets-Sheeta 2.

J. H. SIMPSON. MACHINE. FOR MAKING TURN BUGKLES.

No. 402.695. Patentgd May 7,1889.

H 'WJTNESSES. INVENTOR.

UNITED. STATES PATENT OFFICE.

JAMES H. SIMPSON, OF PITTSBURG, PENNSYLVANIA, ASSIGN OR TO CARNEGIE,

PHIPPS do COMPANY, (LIMITED) OF SAME PLACE.

MACHINE FOR MAKING TURN-BUCKLES.

SPECIFICATION forming part Of Letters Patent No. 402,695, datedMay 7, 1889.

Application filed November '7, 1888. Serial No. 290,183. (No model.)

To all whom it may concern.-

Be it known that 1, JAMES H. SIMPSON, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Machines for Making'Iurn-Buckles; and I do hereby declare the following, to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure- 1 is a front elevation of my improved machine. Fig. 2 is a vertical crosssection thereof on the line X X of Fig. 1, and Fig. 3 is a similar cross-section on the line Y Y of Fig. 1.

Like symbols of reference indicate like parts in each.

I have devised the present machine especially for the manufacture of turn-buckles by the use of dies in which a lateral compression and end compression are imparted to the blank in order to make the buckle; but my invention is not limited to any specific form of die, but relates to the construction of the actuating mechanism itself.

The machine comprises three plungers or moving diestocks, two of which move in right lines toward each other, while the third moves transversely to the path of the other two.

In the drawings, 2 is the rotary main shaft of the machine, on which are arranged three cams, 3, one of which is shown in Fig. 3, and the other two are of similar construction. On these cams are mounted cam-yokes 7, 8, and 9, of usual construction, to which are fixed vertical plungers 4, 10, and 11, which are arranged to reciprocate in slides on the frame 5 -of the machine, and are held in place in such slides by suitable face-plates, 6, Figs. 1 and 3. At the lower end of the plunger 4 is fixed the upper die of the pair of dies designed to give lateral compression to the turn-buckle blank, the lower die being mounted on a suitable dieholder or anvil, 12.

14 and 15 are the plungers or die-stocks, to which are fixed the moving dies, which impart end compression to the blank. The dies are fixed to the inner ends of these plungers, and their rear ends are inclined as shown in Fig. 1, and are faced with shoes 13 of suitable anti-friction metal. The lower ends of the plungers 10 and 11 are inclined conformably to the inclination of the plungers 14 and 15, and

are also faced with shoes, which bear against 'on the shaft 2, and 20 is a pinion in gear therewith, by which the gear-wheel is driven, this pinion being keyed to the rotary drivingshaft 21.

22 is a clutch consisting of a collar which is fitted by a feather and spline to the shaft 2, so as to be capable of longitudinal movement thereon, and 23 is a weighted bell-crank lever, whose end fits in a peripheral groove in the collar, and by the gravity of the counter weight tends to move the clutch-collar in the direction of the gear-Wheel19, and thereby to throw the clutch into gear. V

The clutch is adapted to be put out of gear. by a sliding wedge, 24, which is normally held in position in a laterally-recessed portion of a part, 22, of the clutch-collar by means of a counterweighted lever, 26, to which it is connected. When in this position, the counterweighted lever 26, acting contrarily to the counterweighted lever 23, holds the parts of the clutch separate from each other; but when the wedge is withdrawn the lever 23 connects the parts of the clutch and causes the shaft 2 to rotate; and if the wedge be Withdrawn and held out of the lateral recess for a sufficient time to enable the shaft to commence its rotation and be then released, the shaft will perform a complete revolution until the recess in the clutch-collar again comes in opposition to the end of the wedge, when the counterweighted lever 26 will move the wedge into the recess and will automatically draw back the clutch and stop the rotation of the shaft after the several plungers have performed a complete reciprocation.

The Wedge 24 is adapted to bemoved by a pedal-lever, 28, pedal-shaft 27, and connecting-rod 26, which connects the pedal-shaft with the lever 26.

WVhen the machine has been started in action by pressure on the pedal-lever, the revolution of the shaft 2, acting on the cams 3, causes the plungers, 4:, l0, and 11 to descend, the cams being timed so that the descent of the plunger 4 shall commence a little before the descent of the other two plungers, and by means of the mechanism which I have described the die on the plunger 4 gives to the article to be shaped a lateral compression, and an end compression is imparted by the dies on the plungers 14 and 15. Theplungers may, if desired, be counterbalanced, either by counter-Weights in the usual Way or by means of steam-cylinders exerting upward pressure thereon, so as to relieve the machine from the strain of elevating the plungers after the operation of the dies on the article. The machine may be stopped by the'operator relieving the pressure from the pedal-lever 28, whereupon the counterweight-lever 26 causes the Wedge 24: to ascend at the comple tion of the rotation of the shaft, thus automatically disconnecting the :parts of the clutch.

I claim as my invention 1. In machines for die-forging, the combination of reciprocating plungers 4, 10, and 11, dies operated by motion of the plunger 4, other dies moving transversely to the path of motion of the plunger 4:, and die-stocks carrying said dies and operated by the plungers lOand 11, and retracting-levers 16, connecting the die-stocks With said plungers 10 and 11, substantially as and for the purposes described.

2. In machines for die-forging, the combi* nation of the reciprocating plungers 4, 10, and 11, dies operated by motion of the plunger at to compress the blank, other dies moving transversely to the path of motion of the plunger 4 and acting on the blank with end compression, die-stocks carrying said dies and operated by said plungers, and mechanisn1- such as cams which actuate the plungers, said cams being so timed that the blank shall first be compressed laterally and shall then be acted upon endwise, substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 2d day of November, A. D. 1888.

JAMES H. SIMPSON.

\Vitnesses:

W. B. Conwm, J NO. K. SMITH. 

